Back to EveryPatent.com
United States Patent | 5,076,625 |
Oxley | December 31, 1991 |
An electric door strike includes a rotatable keeper body which is secured against rotation by a solenoid-operated latching mechanism. The keeper is biased toward a released position, and is returned to a latched position by rotation when the door closes against a protruding stop member which is rotationally and horizontally offset from the keeper. The strike is of particular utility for electric conversion of existing door locks.
Inventors: | Oxley; Randall C. (1011 High St., Bridgewater, MA 02324) |
Appl. No.: | 666422 |
Filed: | March 7, 1991 |
Current U.S. Class: | 292/341.16; 292/201 |
Intern'l Class: | E05C 003/16 |
Field of Search: | 292/341.16,216,201,229,DIG. 72 |
381725 | Apr., 1888 | Schneider | 292/341. |
1060234 | Apr., 1913 | De Guise | 292/341. |
1471455 | Oct., 1923 | Ernst | 292/341. |
1529276 | Apr., 1925 | Rich | 292/341. |
2066278 | Dec., 1936 | Keil | 292/341. |
2848263 | Aug., 1958 | Miller | 292/210. |
3211850 | Oct., 1965 | Toepfer | 200/61. |
3325203 | Jun., 1967 | Moler | 292/229. |
3504511 | Apr., 1970 | Allen | 292/201. |
3640560 | Feb., 1972 | Zawadzki et al. | 292/341. |
3765709 | Oct., 1973 | Van Wyck | 292/341. |
3804442 | Apr., 1974 | Powers | 292/341. |
3819215 | Jun., 1974 | Fuss | 292/341. |
3861727 | Jan., 1975 | Froerup et al. | 292/341. |
3890813 | Jun., 1975 | Cothron | 292/210. |
3910617 | Oct., 1975 | Scalza et al. | 292/341. |
4056276 | Nov., 1977 | Jarvis | 292/201. |
4088354 | May., 1978 | Kolendowicz | 292/201. |
4211443 | Jul., 1980 | Butts et al. | 292/341. |
4470625 | Sep., 1984 | Walsh et al. | 292/201. |
4471983 | Sep., 1984 | Bischoff et al. | 292/341. |
4595220 | Jun., 1986 | Hanchett, Jr. et al. | 292/341. |
4613176 | Sep., 1986 | Kelly | 292/201. |
4703960 | Nov., 1987 | Lense | 292/201. |
Foreign Patent Documents | |||
333465 | Jun., 1903 | FR | 292/341. |
1010960 | Apr., 1952 | FR | 292/229. |